2007 4.8 to 2008 4.8

[Robert18]

So far I have replaced the crank sensor behind the starter with the original because the actual plug was different. Also I rewired the cam sensor to the rear. The supposed 07 has the knock sensors under the valley pan where as the original 08 has them on the lower block. I changed them out also. I know those wont not let it start but those are some of the differences. Would the reluctor wheel need to be replaced? Or do I need to replace the camshaft gear because those have different patterns for the sensor to read

[farmtruc]

You are using two different engines. One is gen3. One is gen4

[Lextech]

The Gen3 engine uses a 24x crankshaft reluctor and uses a Black CKP sensor. The Gen4 engine uses a 58x crankshaft reluctor and uses a Gray CKP sensor. The 58x engine which uses an ECM (Engine Control) and a TCM (Transmission Control) cannot be run on an ECM (Engine and Trans Control) without the Lingenfelter box.

Jeff

[farmtruc]

And I'm not sure ling offers a box that goes backwards.
Gen4 -> gen3

[Lextech]

And I'm not sure ling offers a box that goes backwards.
Gen4 -> gen3

Hhmmm, I didn't know that. Thank You for the clarification.

Jeff

[farmtruc]

There was talk and there were a few but I don't think it happened. I looked on the site unless I'm overlooking it

Nowadays it's tuff to find a gen3 with low miles and I'm not sure anyone would take a step back.